Design of RC members strengthened with textile reinforced concrete under Flexural Bending

This paper presents analysis methods and design models based on the conventional reinforced concrete design procedure, that are used to determine the nominal capacity of flexural bending of steel reinforced concrete members strengthened with textile reinforcement. The shown computational algorithm allows considering different failure modes such as textile and steel tensile failure, concrete compressive collapse and introduced stress states, which act before the strengthening measure. In addition to an iterative calculation process, two simplified formulas are given to easily calculate the necessary area of reinforcement of strengthened elements under bending. Furthermore, the article provides tables and charts for a simple and practical design calculation. The application of analysis and design methods is demonstrated conclusively on the basis of example calculations. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.